Cathodic materials for intermediate-temperature solid oxide fuel cells based on praseodymium nickelates-cobaltites
Abstract A unique combination of methods (TPD of $ O_{2} $, thermogravimetry, isotopic heteroexchange of oxygen in different modes) was used to carry out detailed studies of oxygen mobility and reactivity in mixed praseodymium nickelates-cobaltites ($ PrNi_{1 − x} $$ Co_{x} $$ O_{3 + δ} $) and their composites with doped cerium dioxide ($ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $) as promising cathodic materials stable towards the effect of $ CO_{2} $ in the intermediate-temperature region. It is shown that in the case of composites of $ PrNi_{1 − x} $$ Co_{x} $$ O_{3+δ} $-$ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $ synthesized using the Pechini method and ultrasonic treatment, stabilization of the disordered cubic perovskite phase due to redistribution of cations between the phases provides high oxygen mobility. Preliminary results on tests of cathodic materials of this type supported on planar NiO/YSZ anodes (H.C. Starck) with a thin layer of YSZ electrolyte and a buffer $ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $ layer showed that power density of up to 0.4 W/$ cm^{2} $ was reached in the region of medium (600–700°C) temperatures, which was close to typical values for fuel cells of this type with cathodes based on strontium-doped perovskites and their composites with electrolytes..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2014 |
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| Erschienen: |
2014 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:50 |
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| Enthalten in: |
Russian journal of electrochemistry - 50(2014), 7 vom: Juli, Seite 669-679 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sadykov, V. A. [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
© Pleiades Publishing, Ltd. 2014 |
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| doi: |
10.1134/S1023193514070131 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC2060455774 |
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| 245 | 1 | 0 | |a Cathodic materials for intermediate-temperature solid oxide fuel cells based on praseodymium nickelates-cobaltites |
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| 520 | |a Abstract A unique combination of methods (TPD of $ O_{2} $, thermogravimetry, isotopic heteroexchange of oxygen in different modes) was used to carry out detailed studies of oxygen mobility and reactivity in mixed praseodymium nickelates-cobaltites ($ PrNi_{1 − x} $$ Co_{x} $$ O_{3 + δ} $) and their composites with doped cerium dioxide ($ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $) as promising cathodic materials stable towards the effect of $ CO_{2} $ in the intermediate-temperature region. It is shown that in the case of composites of $ PrNi_{1 − x} $$ Co_{x} $$ O_{3+δ} $-$ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $ synthesized using the Pechini method and ultrasonic treatment, stabilization of the disordered cubic perovskite phase due to redistribution of cations between the phases provides high oxygen mobility. Preliminary results on tests of cathodic materials of this type supported on planar NiO/YSZ anodes (H.C. Starck) with a thin layer of YSZ electrolyte and a buffer $ Ce_{0.9} $$ Y_{0.1} $$ O_{2 − δ} $ layer showed that power density of up to 0.4 W/$ cm^{2} $ was reached in the region of medium (600–700°C) temperatures, which was close to typical values for fuel cells of this type with cathodes based on strontium-doped perovskites and their composites with electrolytes. | ||
| 650 | 4 | |a cathodic materials for solid oxide fuel cells | |
| 650 | 4 | |a praseodymium nickelates-cobaltites | |
| 650 | 4 | |a composites | |
| 650 | 4 | |a structure | |
| 650 | 4 | |a isotopic exchange of oxygen | |
| 650 | 4 | |a diffusion coefficient | |
| 650 | 4 | |a rate of heteroexchange | |
| 650 | 4 | |a voltammetric characteristics | |
| 700 | 1 | |a Eremeev, N. F. |4 aut | |
| 700 | 1 | |a Sadovskaya, E. M. |4 aut | |
| 700 | 1 | |a Bobin, A. S. |4 aut | |
| 700 | 1 | |a Fedorova, Yu. E. |4 aut | |
| 700 | 1 | |a Muzykantov, V. S. |4 aut | |
| 700 | 1 | |a Mezentseva, N. V. |4 aut | |
| 700 | 1 | |a Alikina, G. M. |4 aut | |
| 700 | 1 | |a Kriger, T. A. |4 aut | |
| 700 | 1 | |a Belyaev, V. D. |4 aut | |
| 700 | 1 | |a Rogov, V. A. |4 aut | |
| 700 | 1 | |a Ulikhin, A. S. |4 aut | |
| 700 | 1 | |a Okhlupin, Yu. S. |4 aut | |
| 700 | 1 | |a Uvarov, N. F. |4 aut | |
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| 700 | 1 | |a McDonald, N. |4 aut | |
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| 700 | 1 | |a Steinberger-Wilckens, R. |4 aut | |
| 700 | 1 | |a Mertens, J. |4 aut | |
| 700 | 1 | |a Vinke, I. C. |4 aut | |
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